"Leia Organa was a Force-sensitive human female who served as princess of Alderaan, a member of the Imperial Senate, a leader in the Alliance to Restore the Republic and New Republic, and the founding general of the Resistance."

"Leia Organa was a Force-sensitive human female who served as princess of Alderaan, a member of the Imperial Senate, a leader in the Alliance to Restore the Republic and New Republic, and the founding general of the Resistance."

The droids having realized that they were going to lose the war, took a page from other droids in other galaxies far far away and put living tissue on some of their newer models. Passing for "human" these droids infiltrated the Rebels as sleeper agents.